Doorstop



Sept. 23, 1930. VERCH 1,776,305

DOORSTOP Filed Jan. 25, 1930 INVEN'TOR [fur/a: Marc/7 I? TOR/VI Y lel to the surface,

Patented Sept. 23, 1930 cHAnLEsvEncH, or ALBANY, NEW YORK noonsrnor Application filed January 25, 1930. sri l'no. 423,453.

My invention relates to door stops or devices which are placed at the bottom of a door on the insideto the outside. In addition to preventing entrance from the outside, my door stop, in its preferred form, includes an audible alarm or, perhaps, more broadly, an alarm or signal actuating means whereby any'attempt to force an entrance by movingthe door-inwardly will effect an actuation of the alarm or place the alarm actuating mechanism in operation. I

The objects of my invention are to provide a simple device of this character which may be cheaply manufactured, which maybeeasilyplaced in operative position, which will be positive in its operation not only prevent the'door from being opened but will also sound an alarm when any attempt is made to force" an entrance by moving the door inwardly. I

With these objects in views,-my invention includes the novel elements and the combinations and arrangements thereof described below and illustrated in the accompanying drawings, in which-+ in position under'the door; ig. 2 is a plan view of my device;

F ig. 3 is a section of the base plate on the line 3-3 of Fig. 2; and

Fig. 4 is a fragmentary side elevation showing the relative position of theparts when an attempt is made to open the door by forcing it inwardly. l

Referring to the drawings, my device comprises a base plate, 1, which is preferably rectangular when viewed in plan and the upper surface of which is formed of two planes, 2 and 8,'intersecting in line, 4, at about the center of the plate. The sides of portion, 3, are provided with depending flanges, 5 and 6, the lower edges of which ma be about paraltheflanges, 5 and prevent entrance from 4 the middle ofthe plate and which will 2. That 1s, the bottom of 6, are intended to rest upon the floo'r so that the portion of the plate, 3, With'thefianges will form a wedge adapted to be inserted beneath the door. .At about there is a transverse web, 7, Which preferably extends between the flanges, 5 and 6, and forms with the flanges, 5. and 6, and the portion,-.3, a'jrecess in the bot tom of the plate in which a wedge shape rubber block, 8, may be inserted' This'rubber blockrests upon thefloor or sill, 9, and 1s 'intended not only to prevent the devicefrom marring a hardwood sill or floor but also to 'frictionally engage the floor rather firmly andhhold the plate immovablefin respect to the floor'when the door is forcedup'wardly along the surface, 3. Inasmuch aslthe func' tion ofthe transverse web, is merely to hold the rubber block, 8, in place,- it obviously need not extend entirely between the flanges, 5and 6, but may, if desired, be merely a small lug or projection on the. bottomside of the plate. The flanges, 5 and 6, are extended beneath the portion, 2, for a short; distance as perhaps is best shown in- -Fig. 3, atlO; Theplate may be of any kind ofmaterialandmay be cast or stamped. When cast, the Fig. 1 is a side elevation showing my device v portions, 10, are provided with lugs or trunnions, 11, and when stamped,the portions, 10', may be provided with openings inplace'of the trunnions or lugs throughiwhich'a long bolt or pinma'y be inserted in place in the lugs. The purpose of the trunnions, 11, is to" form a supporting means for the resilient element, 12, which secures the device to the door. I This element comprises a U-shaped,'fairly stiff, but resilient wire which is provided at its extremities with upturned points, 13, adapted to be-forced into the'b'ottom of the door, 14:, as shown in" Figs. "1 and f The' sides fjof the U-shaped element, 12, "are pro. vided, at about'the middle, with loops or. link-like openings, 17, which fit over the trunnions, 11, and permit the U-shaped element not only to turn freely upon the-trunnions but also to have some longitudinal movement turned from the position, 15, to the position,

15, or vice versa. 7

Mounted on the base plate, 1, any. appropriate means and approximately centrally located on said plate over portion, '2, is an alarm, 18, here shown5as aibi'cyclebell of the well known type which is wound'up by turning the gong and which is actuated by pressing the button or alarm actuating means, 19. The particul'arkind' of alarmis not important but the-position .ofthe actu-at ing means must be such that when the door is pushed inwardly over the portion, 3, it

ill s me i t .fienfie w the je e 'mam ating means and produce a, movement thereof whereby the alarm actuated. While the alarm'which Ihaveshown an ordinary bicycle bell, it isto be understood that. any

kind of alarm may be usedj In r etlen y is aphasia doorv and isoperatedyas follows (Depending upon the d-istance between the bottom of the,

door and thefioor or the bottom of .the door and the sill, av rubber block, 8,,of appropriate 1 thickness is selected and placed in, position under the plate, 1, so that the plate, 1, to-

gether with the block, 8 forms a wedge-like unit ad; pted to be. forced under the door into n the position shown at Figs. 1 andl. After the base plate is pushed under the door, as. shown .in Fig l, the U-shaped element is pushedtowards the door as far as the movement of the links, 17, on the trunnions will permit. In this position the u-shaped element is in the position shown at 12, in Fig. 1, andthe button, 15, is in the position shown at 15 By then depressing the portion, 20, of

the U -shaped element, 12, '(see Fig. 1) it acts as a lever about the trunnion as a fulcrum and the points, 18, are forced into the bottom of the door. The portions, 20, of;

the U-shapedelement is thus depressed sufficiently so 1 that it lies substantially in the 2, ofv the base plate,

plane: of the portion, thus permitting the button, 15, to be moved from the position, 15', to the position, 15, over the portion, 20, of the U -shaped element to-secure it in place. The device is then in theposition shown in Figs, 1 and 4.

the directionof the arrow shown in Fig. 4 the door is forced upwardly along the .inclined surface, Although the base plate was-originally wedged quite tightly under the door there is enough resiliency in the 'rubber block, 8, and in the door itself so that it rises slightly and moves towards the actuating means, 19, and contacts with it as shown v in Fig. l. The rubber block on account of its clinging action holds the plate in fixed position on the floor and the links, 17 in the U-shaped element, which is secured to the door, permit sufficient movement of the U- shaped element for this actuating contact to take place.

,When the door is forced against the contactthe links assume the position. shown in Figs, thus. pressing the actuating element,

19, and releasing the bell ringing mechanism. The harder the door is pushed from the out side the more eifeo'tive the wedging action becomes so that it is quite impossible to open the door with my stop in place, and so long as the door is being vforced from the outside the "alarificbntinues to ring.

.IVhile I havedescribed my invention in its preferred embodiment itis to be understood that the drawings are merely. illustrative,

I that the words which. I have usedare words of description rather than of limitation, and that changes,.within the purview of theap" pended claims, may be made without de-' partingfrom the truescope and spirit-of my invention in its broader aspects, ."Vhat I claim is base plate adapted to tached to 'said plate for positivelysecu-ring it to the door in wedged position.

.3. In. adoor stop, the combinat on with a base plateadapted to be wedged between the bottom-ofa door :and its isill, of means for positively securing the plate-to the'door ;;said means being .slidablyconnectedto the plate to afforda limited movement of the door r.elative to the plate. 1

41-. Ina doorstop, the-combination witha base plate of a rubber blockv forming with said ,plate a. wedge adaptedto 'be inserted between theebottom of ;.a;door and itssill, and means for' positively securing the plate to the door; said means being slidablyconnected to the plate to a-iforda limitedmovement of the door relative to theplate.

5. Ina device of the character described,

the combination with'a base plateadapted to IVhen pressure is exerted on the door in.

tion'mounted on said plate, and 1means ,for securing the plate to the door; the securing -l'- 111 a oor op, t m i i t i h be wedged between the bottom ofa door andits sill, Of-L WBClg6 dmeans being slidably connected to the plate to afford a limited movement of the door relative to the plate.

6. In a device of the character described, the combination with a base plate of a rubber block forming with said plate a slightly resilient wedge adapted to be inserted between the bottom of a door and its sill of an alarm and means adapted to be actuated by a slight opening movement of the door for placing said alarm in operation mounted on said plate, and means for securing the plate to the door; the securing means being slidably connected to the plate to afford a limited movement of the door relative to the plate. CHARLES VERGH. 

